Slip



April 3, 1929. B. A. sEBRING ET AL 1,710,273

SLIP

Filed June 4. 1928 INVENTORS 05% u BY W i F i ATTORNEY.

Fatented Apr. 23, 1929.

UNlTED STATES.

BERT A. AND MYRON BAILEY, OF DENVER, COLORADO.

SLIP.

Application filed June 4, 1928. Serial No. 282,830.

(lur invention relates to devices iior drawing wires and other partsthroughconduits in \Villlll they are sijibseipiently housed.

in building construction, it is a common expedient to build pi; into thewalls lherco'l i'er kill, purpose of housing electrical w ring; an ithas heretofore been diliicult 1o thread the wires through the pipewithout means other than the bare hand for handli the socullcd h-line;-;by means of which the wires are di wn from one end of the pipe to andthrough the other end. I

All dillicultics heretofore experienced are eliminated by the use oi?our invention which provides an eliieient and practical means forpulling a wire through a conduit in a positive manner, and it is anobject ol the invention to provide a device of simple constructioncapable oi being seemed to the so who or its fish-line at an; pointthereol", by

a simple and readily accomplished manual operation.

in the accompanying drawings, in which like parts are similarlydesignated in the scv ral views ore i rcpr: seats a lace view oi an emlthe cntion;

a swlion taken on the line 22 a taco view oi the opposite side shown inl igure l, and a section taken on the line 4%:

icing more specifically to the drawihe device consi o'l body-part con1-zed of a plate or small proportions so The plate is grooved leiug'thwiseas at 6, for the purpose of mounting an operating member hereinafter tobe described. The groove extends into an enlarged opening 7 and it isalined with an aperture 8 at an end ol the plate and with a socket 9 atthe end of the opening 7 opposite to that at 4.5 which it connects withthe groove.

Pivot-ally mounted upon a face of the body by means of bolts l3, are twoclamping jaws 10, the opposite edges '12 of which are curvedeccen'trically with relation to their pivotal axes and roughened orserrated to more firmly grip upon a needle placed be tween them.

The operating member ferred to comprises a bar 14 pored in the alinedaperture 8 hereinbe'i'ore reslidably supand socket 9, and looselyextending through the groove at it nia be held in the hand or the user.I

16 provided with parallel slots 17 that extend at an ai'igle to thedirection of its sliding motion. The slots cooperate with pins 18 on thetwo jaw members to cause the latter,

to turn simultaneously about their axes of rotation in oppositedirections, when the bar is moved. lengthwise into the socket bypressure upon'its head. A coiled spring 19 in the socket yieldinglyopposes the inward movement of thebar and returns the parts to theirnormal position when the head of: the bar is disengaged by the user.

From the above description, the operation o l the devi -e will bereadily understood.

A wire 20 to be drawn through a pipe 21 is fastened at its forward endto a fish-line or needle 22 by any suitable means such as a loop at theend of the line. The fish-line is placed between the two clamping jawswhile they are in their normal separated position indicated in Figure 3of the drawings. The operator holds the device in the hand and by inwardmovement of the bar causes the jaws to clainp'ingly engage the {ordrawing the line and the wire attached.

at the end thereof, through the pipe, and it is readily adjusted to adillerent part of the line while the latter is held against retrogrademotion by the operator so that the operation of pulling the wire throughthe pipe, may, be accomplished by a series of intermittent movements ofthe fish-line.

It is to he understood that the clamp jaws may be normally held inengagement by the spring acting upon the sliding bar, and separatel bypressure upon the head of: the bar by merely reversing the position ofthe slots or the position of the pins with relation thereto and thatother modifications in the construction and arrangement of the parts ofthe device may be resorted to without de-- parture vfrom the scope ofthe invention.

\Vhat we claim and desire to Letters Patent is 1. A. device of thecharacter described comprising abody part, pivoted jaw-meming operatingmember, having slots transverse to the direction of its movement, the

jaw-members having pins cooperative with the slots to cause simultaneousmovement of the jaw-members in opposite directions by a sliding movementof the operating-member.

2. A device of the character described comprising a body part, pivotedjaw-mombers having cooperative gripping-edges eccentric to their axes ofrotation, and a slit ing operating member having parallel slot-sslanting transverse to the direction of its movement, the jaw-membershaving pins co operative with the slots to cause simultaneous movementof the jaw-members in opposite directions by a sliding movement of theoperating member.

3. A device of the character described comprising a body-part having asocket,

ivoted 'a'W-members havin coo ierative gripping-edges eccentric to theiraxes of rotation, a sliding bar extending into the socket of the body,in operative connection with the jaw-members, and a spring in the socketopposing inward movement of the bar.

4. A device 01" the character described the aw members, the jaw membersand the sliding member havin cooperating pins and slots to causesimultaneous movement of the jaw members by movement of the slidingmember.

5. A'device of the character described,

comprising a body part, pivoted jaw members having cooperative gri pingedges eccentric to their axes of rotation, a slidingoperating member forthe operation of the jaw members, and a spring resisting moirment of thesliding member and disposed to open the jaws automatically when thesliding member is released.

In testimony whereof We have aflixed our signatures.

ERT A. SEEKING. MYRON BAILEY.

